Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1984-09-28
1986-02-11
Pate, III, William F.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74865, 74871, 74877, B60K 4106
Patent
active
045692530
ABSTRACT:
A vehicle automatic transmission including a torque converter, a multiple stage transmission gear mechanism connected with the torque converter and a hydraulic control circuit for automatically selecting one of gear stages of the transmission gear mechanism. The hydraulic control circuit includes a kickdown control device which functions to shift down the gear mechanism when the engine control foot pedal is substantially fully depressed. Depending on the vehicle running condition, the kickdown control device shifts down the gear mechanism by two gear stages. The hydraulic circuit includes control circuit which functions to shift down the gear mechanism at first by one gear stage and then by a further one stage in sequence when a two stage shift down is required.
REFERENCES:
patent: 3653281 (1972-04-01), Shirai et al.
patent: 3673892 (1972-07-01), Kato et al.
patent: 3733930 (1973-05-01), Mizote
patent: 3785224 (1974-01-01), Will
patent: 4034627 (1977-07-01), Mizote
patent: 4142613 (1979-03-01), Iijima
patent: 4369676 (1983-01-01), Gaus
patent: 4391165 (1983-07-01), Gaus
Fukuiri Masaru
Higashi Haruki
Waki Kouichirou
Yukitomo Kazuo
Diehl Dwight G.
Mazda Motor Corporation
Pate III William F.
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